At Thu, 28 Aug 2003 00:57:41 -0700, David Parker wrote: > > Hi, > > A long time ago (many months... sorry I don't know exactly when), my Trident > card stopped working with ALSA on a Debian unstable box. It still works with > the kernel OSS module, but ALSA has problems with the AC'97 codec. Here's what > I tried and the resulting log messages/output: > > hypnotic:/home/dap# modprobe snd-trident > ALSA ../../alsa-kernel/pci/trident/trident_main.c:3394: AC'97 codec ready error > Trident 4DWave PCI soundcard not found or device busy > devfs_register(unknown): could not append to parent, err: -17 > ALSA ../../alsa-kernel/pci/ac97/ac97_codec.c:2096: AC'97 0:0 does not respond - RESET > Trident 4DWave PCI soundcard not found or device busy > > hypnotic:/home/dap# modprobe trident > Trident 4DWave/SiS 7018/ALi 5451,Tvia CyberPro 5050 PCI Audio, version 0.14.10h, > 18:35:01 Jul 19 2003 > trident: Trident 4DWave DX found at IO 0x1400, IRQ 19 > ac97_codec: AC97 codec, id: ""D68 (Unknown) > > hypnotic:/home/dap# uname -a > Linux hypnotic 2.4.22-pre7 #1 SMP Sat Jul 19 18:29:55 PDT 2003 i686 GNU/Linux > > hypnotic:/proc/asound# cat version > Advanced Linux Sound Architecture Driver Version 0.9.4. > Compiled on Jul 19 2003 for kernel 2.4.22-pre7 (SMP) with versioned symbols. > > hypnotic:/home/dap# lspci -n -v -s 00:0b.0 > 00:0b.0 Class 0401: 1023:2000 (rev 02) > Subsystem: 1023:2000 > Flags: bus master, medium devsel, latency 64, IRQ 19 > I/O ports at 1400 [size=256] > Memory at e8002000 (32-bit, non-prefetchable) [size=4K] > Capabilities: [48] Power Management version 1 > > I saw someone else had this same problem on the alsa-devel list a while ago > (http://www.mail-archive.com/[EMAIL PROTECTED]/msg06500.html) > but it doesn't look like it was ever resolved. Is there something I need to > tweak, or is this a valid bug? If it would help to test specific old versions > of ALSA I could do that too.
could you please try the attached patch?
if it still doesn't solve the problem, try to increase the length of
timeout in snd_trident_4d_dx_init(), e.g.
end_time = jiffies + HZ * 2;
it will wait for 2 seconds.
try this with and without the patch.
if the same problem happens, try to commend out the line
"return -EIO;" in the same function, so that the probing proceeds even
if the check fails. let's see whether the further ac97 probing
works.
if still fails... remove the warm reset part.
Takashi
trident-4d-fix.dif
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